package com.itstyle.seckill.common.utils;

import java.util.LinkedList;
import java.util.concurrent.TimeUnit;

public class MyContainer1<T> {
    final private LinkedList<T> lists = new LinkedList<>();
    final private int MAX =10;
    private int count = 0;

    public synchronized void put(T t){
        while(lists.size()==MAX){
            try{
                this.wait();
            }catch(InterruptedException e){
                e.printStackTrace();
            }
        }
        lists.add(t);
        ++count;
        this.notifyAll();//通知消费者线程进行消费
    }
    public synchronized T get(){
        T t = null;
        //为什么用while? wait 99.9%情况下都是和while一起用的
        //
        while(lists.size()==0){
            try{
                this.wait();
            }catch(InterruptedException e){
                e.printStackTrace();
            }
        }
        t = lists.removeFirst();
        count--;
        this.notifyAll();
        return t;
    }

    public static void main(String[] args){
        MyContainer1<String> c = new MyContainer1<>();
        //启动消费者线程
        for(int i=0; i<10; i++){
            new Thread(()->{
                for(int j=0; j<5; j++){
                    System.out.println(c.get());
                }
            },"c"+i).start();
        }
        try{
            TimeUnit.SECONDS.sleep(2);
        }catch(InterruptedException e){
            e.printStackTrace();
        }

        //启动生产者线程
        for(int i=0;i<2;i++){
            new Thread(()->{
                for(int j =0;j<25;j++){
                    c.put(Thread.currentThread().getName()+" "+j);
                }
            },"p"+i).start();
        }
     }
}